Spain 2º ESO Geography and History

Chapters: 3

1. Challenges of today's world

Spatial location and maps · Climate emergency · Biodiversity and ecosystems · Information technologies · Knowledge society · Demographic challenges · Urban and rural spaces · Competition for resources · Distribution of wealth · Gender equality worldwide · Sustainable Development Goals

Map Skills: Reading and Using Maps – A map is a flat, scaled-down view of a place from directly above. To read one you need: the key (symbols), the scale (to measure distance), direction (compass points and bearings), grid references (to find and give a location) and contour lines (to see height and slope). Today GPS finds our position from satellites, and GIS stacks many map layers of data on a computer to answer questions about places.
Climate Change and the Greenhouse Effect – Climate is the average weather of a place over about 30 years. Greenhouse gases like carbon dioxide and methane trap some of the heat the Earth gives off. Humans have added a lot more of these gases by burning fossil fuels and cutting forests, so the Earth is warming. This causes melting ice, rising seas and more extreme weather. We can cut emissions (mitigation) and prepare for changes (adaptation).
Biodiversity and its Conservation – Biodiversity is the variety of life at three levels: genetic, species and ecological. It is highest near the equator and grows with area (log S = log C + Z log A). Every species matters, like rivets on a plane. We are losing species fast because of the 'evil quartet': habitat loss and fragmentation, over-exploitation, alien species invasions and co-extinction. The IUCN Red List (Red Data Book) ranks species from Least Concern to Extinct. We protect life in situ (hotspots, national parks, sanctuaries, biosphere reserves, sacred groves, Ramsar wetlands) and ex situ (zoos, botanical gardens, seed and gene banks).
Diversity and Classification of Living Organisms – Earth has millions of kinds of living things, and India is one of the richest places. To study them, we sort them into groups by asking simple questions about their bodies: Is there a nucleus? One cell or many? Can it make its own food? This gives five kingdoms: Monera, Protista, Fungi, Plantae and Animalia. Animals split into invertebrates and vertebrates. Every species gets a two-part scientific name. Viruses are not cells, so they fit in no kingdom.
Digital Footprints and Netiquette – A digital footprint is the trail of data we leave online. Active footprints are shared on purpose (posts, comments, forms); passive footprints are collected without us noticing (cookies, browsing history, location, IP address). Footprints are hard to erase and can be seen by others later. We live in a digital society where learning, banking, shopping and government services are online; a responsible user of it is a digital citizen (netizen). Net etiquette means being ethical (respect copyright, share reliable information), respectful (privacy, diversity, no bullying) and responsible (avoid oversharing, don't feed trolls). Communication etiquette asks us to be precise, polite and credible; social media etiquette asks us to choose passwords and privacy settings wisely, think before uploading, and verify before sharing.
Social Science Methods: How We Study People and Society – Social scientists study people and society the way scientists study nature: ask a clear question, collect evidence (sources, surveys, interviews, observation, statistics, maps), analyse it, check for bias, and draw careful conclusions. Economics, sociology and political science ask different questions but share these tools.
The World Population: Distribution, Density and Growth – People are not spread evenly on Earth. Most live on fertile plains near water; few live in deserts, high mountains or icy lands. Density tells how many people live on each square km. Geographical, economic and social factors explain the pattern. The world grew slowly for thousands of years and then very fast after 1800. Population changes through births, deaths and migration. The demographic transition theory shows how birth and death rates fall as a society moves from rural farming to urban industry. Countries use family planning and health care to control growth.
Urbanisation: Why Cities Grow and How to Make Them Work – Urbanisation is the rise in the share of a country's or the world's people who live in towns and cities. In 1950 about 30% of the world was urban; since 2007 more than half is, and about 68% is expected by 2050. Cities grow by rural–urban migration (push factors from the countryside, pull factors to the city) and by natural increase. Today the fastest growth is in lower-income and newly emerging countries of Asia and Africa, where megacities of 10 million or more are forming; in many rich countries growth is slow and people also move out to suburbs (suburbanisation and counter-urbanisation). Fast growth brings opportunities (jobs, services) and problems (informal housing, traffic, pollution, waste, flooding, the urban heat island). Sustainable urban development tries to fix these with public transport, green spaces, clean water, recycling, affordable housing and renewable energy.
Geopolitics: How Place Shapes Power – Geopolitics studies how geography (location, size, resources, sea routes) shapes the power of states and their rivalries and alliances. Power is the ability to make others do what you want. Hard power uses force or money (army, economy); soft power attracts (culture, language, universities, technology). Powers rise and decline, as the Ottoman Empire did and as Russia tried to rebuild after 1991. States compete for resources, territory and routes such as straits and new Silk Roads, but also cooperate through treaties, alliances, exclusive economic zones, the International Space Station and the protection of the high seas.
Income Inequality – Income inequality means income is shared unevenly between people. Economists rank people from poorest to richest, split them into five groups of 20% (quintiles) and compare their shares. The Lorenz curve plots the cumulative share of income against the cumulative share of people; the further it bends from the straight line of equality, the more unequal the society. The Gini coefficient = A ÷ (A + B) turns this into one number between 0 (perfect equality) and 1 (one person has everything). Wealth (what you own) is usually more unequal than income (what you earn). Causes include differences in skills, education, inherited wealth, discrimination and technology. Governments reduce inequality with progressive taxes, benefits, minimum wages and public services such as free schooling and health care.
Equality and Discrimination: Same Worth, Fair Chances – Every person has the same worth and the same rights, even though we are all different. Discrimination means treating someone worse because of who they are: sex, skin colour, origin, religion, caste, disability, age or sexual orientation. It can be done with actions, rules or words. Treating everyone exactly the same is not always enough; real equality removes barriers and gives help by need. Gender violence is the most serious form of gender inequality. In sport and daily life we reject discrimination by speaking up and including everyone.
Environment and Sustainable Development – The environment gives us resources, soaks up our waste, supports life and gives beauty. When we take resources faster than nature renews them, or throw waste faster than it can absorb, we cross its carrying capacity and face an environmental crisis. India faces land degradation, air and water pollution, forest and biodiversity loss. Burning fossil fuels traps heat and causes global warming; CFCs thin the ozone layer. Sustainable development meets today's needs without harming the ability of future generations to meet theirs, using clean energy, less waste and traditional knowledge.

2. Societies and territories

Research methods in geography and history · Historical and archaeological sources · Historical time and timelines · Human origins and first societies · Rise of civilisations · War and armies in history · Social complexity and authority · Hidden people in history · Political organisation in history · Classical roots of Western culture · Religion in history · Economy and society in history · City and countryside in history · Voyages and world economy · Spain in world history · Art in civilisations · Science and medicine in history

Historical Thinking: How Historians Work – History is the study of the past using evidence. Put events in order on a timeline and read them in their context. Use primary sources (made at the time) and secondary sources (made later). Judge each source: who made it, when, why, and what is missing. Events have many causes: slow long-term causes and a short trigger. Look for both change and continuity, decide what was significant, and build an argument backed by evidence.
Source Analysis: How Historians Judge Evidence – A source is any trace of the past that gives us evidence: a letter, a coin, a building, a song, a photo or a video. Primary sources come from the time being studied; secondary sources are later accounts, such as books by historians. To analyse a source, ask about its provenance (who made it, when, why and for whom), read its content against what you already know, look for bias, and decide how reliable and how useful it is for your question. Historians check sources against each other (corroboration) and read different scholars' interpretations before writing a reasoned commentary or essay.
Evolution: Origin of Life, Mechanisms and Human Evolution – Life began on the early Earth from simple chemicals: Oparin and Haldane proposed it and Miller made amino acids in a flask. Evidence of evolution comes from fossils, homologous and analogous organs, embryos, molecules and changes we can watch (industrial melanism, drug resistance). Darwin explained it by natural selection acting on variation in populations; the modern synthetic theory adds genes: mutation, recombination, gene flow, genetic drift and natural selection change allele frequencies. If none of these act, frequencies stay constant: Hardy–Weinberg, p² + 2pq + q² = 1. Selection can be stabilising, directional or disruptive. One ancestor spreading into many habitats gives adaptive radiation (Darwin’s finches, Australian marsupials). Humans evolved from Dryopithecus-like apes through Australopithecus, Homo habilis, Homo erectus and Neanderthals to Homo sapiens.
Early Humans and the Beginning of Civilisation – Modern humans (Homo sapiens) first appeared in Africa about 3 lakh years ago and slowly spread across the world, reaching India tens of thousands of years ago. Historians split this long past into ages by the tools people used: Palaeolithic (old stone), Mesolithic (middle stone, tiny tools), Neolithic (new stone, farming), then copper, bronze and iron. When people learned farming, they settled in villages, stored grain and made pots. Some villages grew into planned cities, like the Harappan cities on the Indus and Ghaggar rivers. At about the same time, river-valley civilisations rose in Mesopotamia, Egypt and China.
World History: How to Study a Society, and How Armies Changed – World history looks beyond one country to see how different societies lived at the same time. To study any society, ask five questions: who had power, how people worked and traded, what they believed, what they created, and whom they met. Four big societies of 1500–1950 (Mughal India, Qing China, the Russian Empire and the United States) show how differently people organised life. Armies also changed: from spears and shields, to mounted warriors and castles, to gunpowder and cannon, to paid standing armies and finally industrial war with railways and factories. Each change caused others, such as stronger central governments and higher taxes.
Social Stratification – Social stratification means that a society ranks groups of people in layers (strata). Higher layers get more money, power and respect. The four main systems are slavery, estate, caste and class. Class depends on income, wealth, occupation and education. Functionalists say unequal rewards help society; conflict thinkers say they help the rich stay on top. Moving between layers is called social mobility.
Social History: How Ordinary People Lived – Social history studies the lives of ordinary people, not only kings, wars and treaties. It asks how people worked, lived, ate, dressed, married, worshipped, fell ill and had fun, and how society was divided into groups. Before modern times most societies were shaped like a pyramid: a small group of rulers and nobles, priests and rich families, a middle layer of townspeople, merchants and craftsmen, and a huge base of peasants, with some unfree people such as serfs or slaves. Villages ran their own communities; towns were places of markets, guilds and mixing between groups. Industrialisation moved people from farms to factories, created a working class and a growing middle class, and led to unions, new laws and later welfare states. Daily life changed with new light, transport, newspapers, schools and medicine. Social historians also look for 'hidden' people (women, the poor, minorities, migrants) and even at how feelings and customs changed.
State and Government: What Makes a State – A state is a political community with four elements: a permanent population, a territory, a government and sovereignty (supreme power inside, independence outside). The government is the team that runs the state and can change; the state stays. States differ in who decides (democracy, monarchy, dictatorship), how power is shared (unitary or federal) and how much they do for citizens.
Economic Systems: Who Decides What, How and for Whom? – Every society has limited resources and must decide what to produce, how to produce it and for whom. A traditional economy answers by custom, a market economy by prices and private choice, and a command (planned) economy by a government plan. Capitalism is built on private ownership and markets; socialism on shared or state ownership and planning. Real countries are mixed economies: markets make most goods while the government provides public services, rules and support.
Human Settlements: Rural and Urban Types, Evolution of Towns, Urbanisation and Smart Cities – A settlement is any group of homes where people live, from a single hut to a big city. Rural settlements depend on farming and other primary work; urban settlements depend on industry, trade and services. Villages can be clustered, semi-clustered, hamleted or dispersed. Indian towns grew in three periods: ancient, medieval and modern. The urban share rose from 11% in 1901 to 31% in 2011. Towns are grouped by their main job: administrative, industrial, transport, commercial, mining, garrison, educational, religious and tourist. The Smart Cities Mission (2015) aims to make 100 cities cleaner, safer and easier to live in.
The Age of Exploration (c. 1400–1600) – Between about 1400 and 1600, sailors from Portugal and Spain, and later other European countries, opened new sea routes across the world's oceans. They wanted spices and gold without paying many middlemen, they wanted to spread Christianity, and they wanted fame. New ships (the caravel), the compass, the astrolabe and better maps made long trips possible. Dias reached the southern tip of Africa (1488), Columbus reached the Americas (1492), da Gama reached India (1498) and Magellan's fleet sailed round the world (1519–22). Earlier, Zheng He of China had led huge fleets to Africa (1405–33). The voyages linked the whole world for the first time. They brought trade, new foods and wealth to Europe, but also conquest, deadly disease and the Atlantic slave trade.
Art History: From Cave Walls to Today – People have made art for at least 40,000 years. Prehistoric art shows animals and hands on cave walls. Ancient civilisations made art for rulers, gods and the afterlife. Classical traditions arose in Greece and Rome, India, China, Africa and the Americas. The Renaissance brought perspective and realism; modern art (from about 1860) broke those rules; contemporary art uses any material. To appreciate any artwork, describe it, analyse its elements, interpret its meaning in its context, and judge why it works.
History of Medicine – For hundreds of years (about 1000–1500) most doctors followed old ideas from ancient Greece: illness came from an imbalance of four humours, treated by bleeding and purging, with prayer and herbs. The Renaissance (1500s–1700s) brought careful dissection (Vesalius), the circulation of blood (Harvey) and the first vaccine (Jenner, 1796). In the 1800s germ theory (Pasteur, Koch) showed that microbes cause disease; surgery solved pain (anaesthetics), infection (antiseptics) and later bleeding (blood groups). In the 1900s antibiotics, X-rays, DNA science, wars, new technology and government public-health systems changed medicine again. Change was driven by individuals, science, technology, war, government and communication, and slowed by tradition, religion and lack of knowledge.

3. Civic commitment

Human dignity and children's rights · Respect for others · Gender equality · Interest in current issues · Social networks and online safety · Democratic culture · Environmental awareness · Protecting heritage · Solidarity and empathy · Managing emotions · Life cycles and lifestyles · State and peace · European citizenship · Road safety and public space

Human Rights: Meaning, History, Types and Protection – Human rights are the basic freedoms and protections that belong to every person because they are human. They are universal, inalienable, indivisible and rooted in dignity. The Universal Declaration of Human Rights (1948) set a common standard, later made binding through treaties. Rights are protected by constitutions, courts, commissions, the UN and civil society, and they can be limited only by fair laws that protect others.
Equality and Discrimination: Same Worth, Fair Chances – Every person has the same worth and the same rights, even though we are all different. Discrimination means treating someone worse because of who they are: sex, skin colour, origin, religion, caste, disability, age or sexual orientation. It can be done with actions, rules or words. Treating everyone exactly the same is not always enough; real equality removes barriers and gives help by need. Gender violence is the most serious form of gender inequality. In sport and daily life we reject discrimination by speaking up and including everyone.
Civic Engagement: How Citizens Take Part – Civic engagement means taking part in the life of your community and country. It is like a ladder: stay informed, vote, join groups, volunteer, then organise and campaign. Citizens vote in elections to choose representatives and in referendums to answer one question directly. They join political parties (which aim to govern), trade unions (which defend workers) and associations or NGOs (which work for a shared cause). Between elections they sign petitions, volunteer, mediate local conflicts and campaign online, checking facts first. Whistleblowers reveal hidden wrongdoing, and a free press and public opinion turn it into action. Organising a community event shows all these skills: planning, teamwork and responsibility.
Cyber Crime and Cyber Safety – Cyber crime is any crime that uses a computer, phone or the internet as a tool or target. Common forms: hacking (breaking into a system without permission; ethical hackers test security with permission), eavesdropping (secretly intercepting communication), phishing (fake emails, SMS or websites that trick you into giving passwords, OTPs or card details), ransomware (malware that locks or encrypts files and demands money), cyber trolls (people who post provoking, offensive messages) and cyberbullying (harassing, threatening or humiliating someone online). Malware includes viruses (attach to files and spread), worms (spread by themselves), trojans (look useful but open a back door), spyware and adware (unwanted pop-up ads, often tracking). Safe browsing: https sites, updated software, antivirus and firewall, no unknown links or downloads. Identity protection: strong unique passwords, two-factor authentication, never sharing OTPs, careful sharing of personal details, and logging out on shared devices.
Environmental Stewardship: Caring for the Planet as We Use Technology – Environmental stewardship means using the Earth's resources carefully so they last, and fixing harm where we can. Every product, from a phone to a hospital machine, has a life cycle: raw materials, making, transport, use and end of life. Each stage uses energy and makes waste. Good stewards keep products longer, choose efficient machines, follow the waste hierarchy (refuse, reduce, reuse, recycle, then dispose), send e-waste to proper recyclers and support laws and company practices that protect nature. Technology can harm the environment, but it can also help: solar panels, LEDs and smart sensors cut waste.
Cultural Heritage – Cultural heritage is everything a community receives from the past, values today and wants to pass on: buildings and monuments, objects in museums, languages, music, dance, festivals, crafts, food and knowledge. Tangible heritage can be touched (immovable like temples and bridges, movable like coins and manuscripts); intangible heritage is lived and practised; natural heritage covers special landscapes and wildlife. Heritage gives identity, teaches history, brings income through tourism and links people across cultures. It is threatened by weathering, pollution, crowds, careless development, neglect and conflict, and is protected by conservation, laws, museums, heritage lists, education and local communities.
Social Justice: Fair Shares for All – Justice means giving each person their due. Social justice is about fair sharing of goods, services and chances in society. Three principles guide fair sharing: equal treatment for equals, reward in proportion to effort and skill, and extra help for special needs. They must be balanced. John Rawls suggested choosing society's rules from behind a 'veil of ignorance', not knowing what position we would get; a rational person would then protect the worst-off. Pursuing social justice means first securing basic needs (food, water, housing, health, education, minimum wage) for everyone. People disagree on how: free-market supporters want open competition with a small state; others want the state to provide welfare. India uses a mix.
Mental Health: Feelings, Stress and Support – Mental health is how we think, feel, cope and get along with others. Like physical health, everyone has it and it moves up and down. Emotions are useful signals. Stress adds up like water in a bucket; healthy coping (sleep, movement, talking, calm breathing, planning) lets it drain. Self-esteem and good relationships protect us. If feelings stay very heavy for two weeks or more, or stop daily life, talk to a trusted adult or a professional — asking for help is a sign of strength.
Social Change and Social Order in Villages and Cities – Social change means a big, lasting change in how society is organised. It can be slow (evolutionary) or sudden (revolutionary), and it can change structures, ideas or values. It is caused by the environment, technology and the economy, politics and culture. Social order is the other side: the way society keeps itself steady through shared values, domination, authority and law. Order is always challenged by contest, crime and violence. Villages, towns and cities differ in size, density and work, and each changes in its own way.
Civics and Government: How Citizens and Governments Work Together – Civics is the study of how people govern themselves and how citizens take part. In a democracy, power comes from the people, who choose representatives in free elections. Government has three branches: the legislature makes laws, the executive carries them out and the judiciary checks they follow the constitution. Most countries also have levels of government (local, state or provincial, national), each with its own jobs. A law starts as an idea, becomes a bill, is debated and voted on, and gets final approval. Citizens have rights, such as free speech and voting, and responsibilities, such as obeying laws and respecting others. Active citizens stay informed, vote, volunteer and work peacefully for change.
The European Union – The European Union (EU) is a group of 27 European countries that share some decisions and laws. It began in 1951, when six countries pooled coal and steel to make war between them impossible. It grew step by step into a single market where goods, people, services and money move freely. The Commission proposes laws, the Parliament and the Council pass them, and the Court of Justice makes sure they are applied. 21 members share the euro. The United Kingdom left in 2020.
Road Safety: The Physics of Stopping and Staying Safe – A vehicle cannot stop at once. First the driver needs time to notice and react (reaction time, about 1 s). During this time the vehicle keeps moving: this is the thinking distance = speed × reaction time. Then the brakes slow it down: this is the braking distance = speed² ÷ (2 × deceleration). Stopping distance = thinking distance + braking distance. Double the speed and the braking distance becomes four times longer. Wet, icy or worn roads and tyres give less grip (friction), so braking is longer and bends are harder to take. In a crash, seat belts, helmets, airbags and crumple zones make the stop take longer, which makes the force on the body smaller. Pedestrians, cyclists, scooter riders and passengers all stay safer by following traffic rules, being seen, and never using a phone while moving.